Home / 760,722.26-1,049,829.52-421,190.50

Finding the Fourth Proportional to 760,722.26, 1,049,829.52 and 421,190.50

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Solution

The fourth proportional to 760,722.26, 1,049,829.52 and 421,190.50 is: 581,261.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,722.26 : 1,049,829.52 = 421,190.50 : x
  2. Step 2: Convert to fraction form
    760,722.26/1,049,829.52 = 421,190.50/x
  3. Step 3: Cross multiply
    760,722.26x = 1,049,829.52 × 421,190.50
  4. Step 4: Simplify right side
    760,722.26x = 442,178,220,443.56
  5. Step 5: Solve for x
    x = 442,178,220,443.56/760,722.26
  6. Step 6: Final answer
    x = 581,261.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.